Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650863 | Image reading and copying using plural illumination sources having different characteristics | Tsutomu Utagawa, Shinobu Arimoto, Kazuo Yoshinaga, Toshio Hayashi, Tetsuya Nagase +1 more | 1997-07-22 |
| 5631723 | Image processing apparatus for determining whether an image contains a particular pattern using invisible light | Shinobu Arimoto, Katsuichi Shimizu, Yutaka Komiya, Kazuo Yoshinaga, Toshio Hayashi +3 more | 1997-05-20 |
| 5617187 | Image reading apparatus, copying apparatus, image processing apparatus, and image processing method | Toshio Hayashi, Shinobu Arimoto, Kazuo Yoshinaga, Tsutomu Utagawa, Tetsuya Nagase +1 more | 1997-04-01 |